I highly recommend filtering water, both for taste and sediment. We had a Seagull that a previous owner had installed and liked it, but I'd NEVER install one myself -- too expensive initially and the filters are proprietary (hard to find and expensive). I'd go with the 10" "whole house" filters that easily go on any water line -- get the housing at any hardware
or home improvement store; you can get filters almost anywhere in the world.
Even using the finest filters (0.5 microns), these work on hand and foot pumps. While ours was on the pressure side, I know at least 10 boats that had them on hand or foot pump lines and reported no problems (several of those boats I've used the pump while aboard and can vouch for it not being a problem).
Here are some photos of installations and information on the differences in the various types of filters you can get (pleated, spun, string-wound,etc.) and what you need if you just want to improve taste vs. what you need to reduce sediment vs. what you need to remove bacteria. We had no clue when we started cruising and made a lot of mistakes
. These are from my blog:
Water Filtering Systems
Choosing a Water Filter
And yes, they're VERY easy to install on a standard hose when filling the water tank(s), the connector fittings can be found at most places that sell the housings. We filtered dock
water going into the tank, and all our drinking/cooking water again before using it.